tools/perf/tests/shell/stat_all_pmu.sh

   1 #!/bin/bash
   2 # perf all PMU test (exclusive)
   3 # SPDX-License-Identifier: GPL-2.0
   4
   5 set -e
   6 err=0
   7 result=""
   8
   9 trap_cleanup() {
  10   echo "Unexpected signal in ${FUNCNAME[1]}"
  11   echo "$result"
  12   exit 1
  13 }
  14 trap trap_cleanup EXIT TERM INT
  15
  16 # Test all PMU events; however exclude parameterized ones (name contains '?')
  17 for p in $(perf list --raw-dump pmu | sed 's/[[:graph:]]\+?[[:graph:]]\+[[:space:]]//g')
  18 do
  19   echo "Testing $p"
  20   result=$(perf stat -e "$p" true 2>&1)
  21   if echo "$result" | grep -q "$p"
  22   then
  23     # Event seen in output.
  24     continue
  25   fi
  26   if echo "$result" | grep -q "<not supported>"
  27   then
  28     # Event not supported, so ignore.
  29     continue
  30   fi
  31   if echo "$result" | grep -q "Access to performance monitoring and observability operations is limited."
  32   then
  33     # Access is limited, so ignore.
  34     continue
  35   fi
  36
  37   # We failed to see the event and it is supported. Possibly the workload was
  38   # too small so retry with something longer.
  39   result=$(perf stat -e "$p" perf bench internals synthesize 2>&1)
  40   if echo "$result" | grep -q "$p"
  41   then
  42     # Event seen in output.
  43     continue
  44   fi
  45   echo "Error: event '$p' not printed in:"
  46   echo "$result"
  47   err=1
  48 done
  49
  50 trap - EXIT TERM INT
  51 exit $err